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http://dx.doi.org/10.7855/IJHE.2011.13.1.177

Field Application Evaluation of Black VES-LMC  

Jung, Won-Kyong ((주)삼우아이엠씨 기술연구소)
Kil, Yong-Su (강원대학교 토목공학과)
Kim, Yong-Bin (강원대학교 토목공학과)
Yun, Kyong-Ku (강원대학교 토목공학과)
Publication Information
International Journal of Highway Engineering / v.13, no.1, 2011 , pp. 177-183 More about this Journal
Abstract
VES-LMC(very-early strength latex modified concrete) has been widely used as repair material for bridge deck overlay or rehabilitation, because it could be opened to the traffic after 3 hours of curing. However, the bright color of VES-LMC disturb driver's sigh. A black VES-LMC, matching to asphalt concrete, was developed and applied at a filed for driver's comfort and safety. The black VES-LMC included 2% carbon black in cement weight ratio. A series of performance evaluation for black VES-LMC was done in terms of field applicability, pavement color and temperature change. The field applicability test result showed that there were no change of workability, slump and air void, and the compressive strengthen developed more than 20MPa after 4 hours of placement. The thermal stress of black VES-LMC was smaller than that of OPC and asphalt concrete, which means the stability of black VES-LMC. The performance evaluation result showed that the black VES-LMC could prevent road icing at below zero temperatures and promote thawing at melting temperature.
Keywords
VES-LMC; black VES-LMC; carbon black; field performance; evaluation;
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